Andreev reflection in bilayer graphene

2007/01/31 by Thomas Ludwig, T. Ludwig · 2 citations
Chemistry · Materials Science · Physics and Astronomy · #Andreev reflection #Bilayer #Bilayer graphene #Chemistry #Condensed matter physics #Conductance #Dirac equation #Electron #Graphene #Graphene research and applications #Membrane #Physics #Quantum and electron transport phenomena #Quantum mechanics #Spinor #Superconductivity #Topological Materials and Phenomena #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.75.195322

published as PRB 75, 195322 (2007) · 9 pages, 8 figures

arxiv created 2007/04/16 · openalex publication_date 2007/05/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We consider the differential conductance of a normal-superconductor junction in clean bilayer graphene in the framework of the Dirac--Bogoliubov--de Gennes equation. A remarkable suppression of the differential conductance at voltages just below the superconducting gap is found. This can be understood in terms of the spinor structures of the electron and hole excitations, in particular, the reflected valence-band hole being orthogonal to the incoming electron at normal incidence.

Citations

• Quantum Transport of Massless Dirac Fermions
• Sub-Poissonian Shot Noise in Graphene
• Berry's Phase and Absence of Back Scattering in Carbon Nanotubes
• Unconventional quantum Hall effect and Berry’s phase of 2π in bilayer graphene
• Electron-electron interactions and the phase diagram of a graphene bilayer
• Specular Andreev Reflection in Graphene
• Impurity Scattering in Carbon Nanotubes – Absence of Back Scattering –
• Random-matrix theory of quantum transport
• Zitterbewegung, chirality, and minimal conductivity in graphene

Cited by

• Enhanced specular Andreev reflection in bilayer graphene
• Colloquium: Andreev reflection and Klein tunneling in graphene